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Concrete Pump Spare Parts Delivery Cylinder
concrete pump cylinder

Concrete Pump Spare Parts Delivery Cylinder

JINYO sales and customized Concrete Pump Spare Parts Delivery Cylinder

    Product Introduction

    The Concrete Pump Cylinder, also known as the delivery cylinder or main pumping cylinder, is one of the core components of a concrete pump system.

    It primarily drives the piston to push concrete back and forth in the delivery pipe, achieving continuous concrete delivery. Pump cylinders are typically used in pairs, working in conjunction with the S-valve system and piston rod to ensure smooth delivery of concrete from the hopper into the delivery pipe.、

    Concrete Pump Cylinder Structure:

    A complete concrete pump cylinder consists of the following components:

    Cylinder Body: Made of high-strength alloy steel or high-quality seamless steel pipe, the inner wall is precision-honed or chrome-plated for improved wear resistance and sealing.

    Piston: Located inside the cylinder body, it reciprocates under the action of hydraulic fluid, pushing concrete into the delivery pipe.

    End Caps: Attached to both ends of the cylinder body for sealing and connection.

    Seal Set: Prevents hydraulic fluid leakage and ensures stable system pressure.

    Flange and Guide Sleeve: Ensure smooth piston rod movement and prevent cylinder wear.

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    SPECIFICATION:

    · Pump cylinders are typically made of the following materials:

    · 45# seamless steel pipe / CK45 / ST52 / 20MnV6 / 42CrMo4
    · The inner surface is typically treated with high-precision honing or hard chrome plating, achieving a roughness of Ra 0.2–0.4 μm, ensuring excellent sealing and wear resistance.

    ·Heat treatment (quenching and tempering) can increase the hardness to HRC 50–55, extending service life.

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    Product Description

    Concrete Pump Cylinder is engineered for high strength, precision, and durability.
    Its superior material selection, precision honing, and hard chrome surface treatment ensure efficient concrete delivery and long service life under extreme working conditions.
    Choosing a reliable pump cylinder means choosing longer uptime, reduced maintenance, and better overall pumping performance.


  • High Precision Honed Bore – Inner diameter tolerance reaches H8–H9, ensuring smooth piston motion and tight sealing.

  • Superior Wear Resistance – Hard chrome plating protects the cylinder from concrete abrasion and extends service life.

  • Excellent Pressure Resistance – Designed for high-pressure hydraulic systems, ensuring safe and efficient operation.

  • Corrosion and Fatigue Resistance – Advanced surface treatment provides excellent anti-corrosion and fatigue performance.

  • OEM & Custom Service – Dimensions, materials, and surface coatings can be customized according to customer requirements.


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    Product parameters


    OEM Cylinders For Concrete Pump
    Product Name Concrete Pump Cylinder
    Inner Diameter Φ140mm – Φ260mm (customizable)
    Outer Diameter Φ160mm – Φ280mm
    Total Length 850HV(min)
    Surface Hardness Ra0.2um(max
    Roughness (Ra) ≥350 Mpa
    Material ≥580 Mpa
    Processing 0.2/1000mm
    Compatibility ≥15%
    Service Customized according to Customer requirements
    Application 1.Concrete pump trucks
    2.Trailer-mounted concrete pumps
    3.Stationary and mixer pumps
    4.Construction projects including tunnels, bridges

    Product Display

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    Product Applications

    - Concrete pump trucks
  • Trailer-mounted concrete pumps

  • Stationary and mixer pumps

  • - Construction projects including tunnels, bridges, foundations, and high-rise buildings

  • - Suitable for both domestic and international concrete machinery brands

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